Cumincad : CUMINCAD Papers : Search Results

CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	eaea2009_piga
id	eaea2009_piga
authors	Piga, Barbara E.A.
year	2011
title	The Urban Simulation and Projects Evaluation Laboratory at the Politecnico di Milano: An Educational and Research Facility
source	Projecting Spaces [Proceedings of the 9th European Architectural Endoscopy Association Conference / ISBN 978-3-942411-31-8 ], pp. 115-120
summary	At the beginning of 2007 an Italian Urban Simulation Laboratory was founded at the Politecnico di Milano. The laboratory, coordinated by prof. Fausto Curti, has been developed thanks to the one year presence of the visiting professor Peter Bosselmann, director of the Environmental Simulation Laboratory at the University of California at Berkeley. The laboratory has an interdisciplinary approach and a threefold mission: experiment, using the laboratory setting to study urban projects at different scales; communicate, aiding public communication by making urban projects understandable to everyone; integrate and innovate, working on different kind of simulations techniques in an integrated way. In its initial experience the laboratory is primarily a didactic and research facility. Students can join the work and participate actively to the research. Until now about 40 students have worked with us, more than a half were foreign students from all over the world. The majority of the students did an internship of about 150 (three-year degree) or 300 (master degree) hours and some of them have continued working after this period developing a thesis. At the moment the case study, used as a pilot research, is about the Porta Nuova project at the Garibaldi- Repubblica area in Milan. The 300.000 mq of the total area and its well served central position make this place strategic for Milan. In this area the adopted urban transformation plan is creating a new business center that affects redevelopment projects, new infrastructures, and a park. The overall project will overhanging the surroundings city center with some of the highest buildings of its skyline. The importance of the site and the dimension of the project make this case significant to test the use of simulation for supporting evaluations about morphological aspects, comfort conditions, visual impacts, and other aspects that directly influence the quality of the new urban spaces. We are now applying different simulation methodologies in order to better understand the peculiar usefulness of each kind as a tool to support evaluation. As any kind has its own limits we work with different typologies at the same time. We are working with 1:500 scale physical model of a 1 km square of the area and different kind of static and dynamic simulations. We developed, with an external office, a micro-car to move a micro-camera in the maquette. We use this equipment to better explain the project implications to the students by producing subjective shot videos or showing a walk in real-time. To reproduce in a better way some relevant walks through the transformed site we have also produced some videos made of a superimposition of the real existing context and the virtual projects. To do this we used a rendered video of the project superimposed to the filmed promenade of the today condition, previously recorded using steadycam. A lot of static simulations has been employed to better understand the new city configuration from some representative points of view, as for example the roof of the Duomo cathedral. We are now developing some other kinds of analysis such as shadows impact; this is done by using a 1:1000 scale maquette in the Heliodon, but also with some digital tools. In the next future a work with the wind tunnel will help to understand some other comfort implications of the project at the micro-urban scale. The multilayer approach is the main aim of the laboratory and is an important tool to clarify the multidimensional project impacts to the students. In this way the laboratory can be a learning tool, it can stimulate the project process and support decision-making while improving the knowledge about the correct use of simulations for evaluating the cumulative implications of the proposed urban processes.
series	other
more	http://info.tuwien.ac.at/eaea
last changed	2011/03/04 08:45

_id	ecaade2007_226
id	ecaade2007_226
authors	Agger, Kristian; Lassen, Michael; Knudsen, Nikolaj; Borup, Ruben; Rimestad, Jens; Norholdt, Peter; Bramsen, Nikolaj
year	2007
title	B-processor
doi	https://doi.org/10.52842/conf.ecaade.2007.043
source	Predicting the Future [25th eCAADe Conference Proceedings / ISBN 978-0-9541183-6-5] Frankfurt am Main (Germany) 26-29 September 2007, pp. 43-50
summary	The B-processor is a redesign of the digital building information modelling/managing concept: Addressing the whole building industry participants and all phases in the building process. Offering a new “standard” for digital building information structure with generic modelling and evaluation tools in the B-model kernel. Plug-in structure for free extension of the B-processor system by the Building Industry. Kernel prototyped in Java to be downloaded for free – open source.
keywords	Digital applications in construction, digital fabrication and construction, prediction and evaluation, design methodology, generative design
series	eCAADe
email
last changed	2022/06/07 07:54

_id	caadria2007_677
id	caadria2007_677
authors	Anbusivan, R.
year	2007
title	Automation of Passive Solar Design System
doi	https://doi.org/10.52842/conf.caadria.2007.x.l5x
source	CAADRIA 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Research in Asia] Nanjing (China) 19-21 April 2007
summary	This research, focus on the automation of passive solar design system using computational method. The quantitative nature of passive solar design system makes the automation possible. The automation is done in stages, because implementing the passive solar design system is not an isolated process, but intertwined with the overall design process. The first phase of automation concentrates in conceptual stage, to avoid major deviations in later stages of the design. The conceptual stage use Eco-grammar (A preset Design guidelines for corresponding climate) and user inputs for initial form generation. The second stage of automation is done after the user finalize the model with respect to its position rotation and arrangements. In this stage manipulation of vertex, edges and faces of the forms were manipulated using genetic algorithm. The value of mutation or crossover done in genetic algorithm is suggested by knowledge engine (preloaded design knowledge). Until the form obtains or reach closer to the desired values of performance the loop between analysis and mutation, crossover will be continued. On the basis of analysis result further manipulations may change from the previous which is guided by the knowledge engine.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	ascaad2007_014
id	ascaad2007_014
authors	Dritsas, S. and E. Rafailaki
year	2007
title	A Computational Framework for Theater Design
source	Em‘body’ing Virtual Architecture: The Third International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2007), 28-30 November 2007, Alexandria, Egypt, pp. 165-182
summary	This paper presents the results of an ongoing research on computational methods for the design of theatrical spaces. We demonstrate a systemic approach to design supported by a set of digital tools implemented for assisting the process. The primary purpose of the framework is to establish a formal basis for expressing and exploring explicit design criteria. At this stage the framework enables us to metrically access a range of design metrics that traditionally have been addressed through primarily architectural narrative. Moreover, our method strives in establishing a background where knowledge can be explicitly encoded and the results of analytical methods can be additively employed. In the future, the framework will assist as the platform for experimenting with generative or query-based design processes empowered by computation. We structured this paper / framework around three conceptual units: (a) a design intent toolkit assisting the processes of rapidly generating theater configurations; (b) an analytical system that evaluates a range of design metrics centered about aspects of visual comfort; and (c) a post-processing and visualization unit that binds the design metrics with existing data / studies and provide a range of representation methods. Overall, the methodology adopts existing knowledge in theatrical design, challenges traditional ideas of understanding the theater and proposes methods for evaluating its architectural performance. The conclusions focus on highlighting both the limitations and the potential of our system in the process of theater design. We also extend outside the boundaries of the current research into a brief discussion on the methodological impact of digital technology in architectural research. Finally we propose areas of future research and development.
series	ASCAAD
email
last changed	2008/01/21 22:00

_id	acadia07_040
id	acadia07_040
authors	Hyde, Rory
year	2007
title	Punching Above Your Weight: Digital Design Methods and Organisational Change in Small Practice
doi	https://doi.org/10.52842/conf.acadia.2007.040
source	Expanding Bodies: Art • Cities• Environment [Proceedings of the 27th Annual Conference of the Association for Computer Aided Design in Architecture / ISBN 978-0-9780978-6-8] Halifax (Nova Scotia) 1-7 October 2007, 40-47
summary	Expanding bodies of knowledge imply expanding teams to manage this knowledge. Paradoxically, it can be shown that in situations of complexity—which increasingly characterise the production of architecture generally—the small practice or small team could be at an advantage. This is due to the increasingly digital nature of the work undertaken and artefacts produced by practices, enabling production processes to be augmented with digital toolsets and for tight project delivery networks to be forged with other collaborators and consultants (Frazer 2006). Furthermore, as Christensen argues, being small may also be desirable, as innovations are less likely to be developed by large, established companies (Christensen 1997). By working smarter, and managing the complexity of design and construction, not only can the small practice “punch above its weight” and compete with larger practices, this research suggests it is a more appropriate model for practice in the digital age. This paper demonstrates this through the implementation of emerging technologies and strategies including generative and parametric design, digital fabrication, and digital construction. These strategies have been employed on a number of built and un-built case-study projects in a unique collaboration between RMIT University’s SIAL lab and the award-winning design practice BKK Architects.
series	ACADIA
email
last changed	2022/06/07 07:50

_id	bsct_islami
id	bsct_islami
authors	Islami, Agron
year	2007
title	A Systematic Approach to Thermal Adaptation of Detached Single Family Buildings in Kosovo
source	Vienna University of Technology; Building Science & Technology
summary	The research focuses on thermal behaviour of non-insulated single detached family units in the region of Kosovo. The region has experienced a massive construction of illegal housing especially after the conflict of 1999. Such construction resulted in poor thermal behaviour of the houses due to the lack of insulation. The poor thermal behaviour resulted in degradation of thermal comfort for the inhabitants of the houses. This phenomenon occurs due to energy savings to heat the house or more accurately, a specific part of the house. The simulation is based on parametric studies in an hourly basis to compute the thermal behavior of three specific houses. The first simulation is performed on a non-insulated house whereas the other simulations are performed with improved thermal insulation in order to understand the importance of a thermal envelope and its impact in this type of houses. The generated results emphasize the energy savings if thermal envelope is improved in existing houses. Simulation program “TAS” was used to extract figures and numbers related to the cases.The research aims to inform the local population on possibilities for increasing the thermal performances of their houses by improvement of the thermal envelope. It raises the quality of living in their dwellings as well as the quality of the environment, subject to a considerable degradation caused by pollution, generated by the outworn power thermal power plants in Kosovo.
keywords	Building performance, Non-insulated house, Thermal comfort, Heating, Parametric calculations
series	thesis:MSc
email
more	http://cec.tuwien.ac.at
last changed	2007/07/16 17:51

_id	cf2007_279
id	cf2007_279
authors	Marques, Davis; Robert Woodbury
year	2007
title	Managing Contingency in Parametric Models through Implicit Relational Modeling
source	Computer Aided Architectural Design Futures / 978-1-4020-6527-9 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Futures / 978-1-4020-6527-9] Sydney (Australia) 11–13 July 2007, pp. 279-288
summary	Modeling and maintaining relationships in a parametric model compounds the work of the designer. When major changes in design direction take place, the work invested in the modeled relations is often lost. We contend that an implicit relational modeling approach provides for loosely coupled relations between the 'parts' of a design and mitigates the loss of work that occurs when changes take place. In our implemented system, implicit relations participate in a pattern of interaction known as the Dynamic Proxy.
series	CAAD Futures
email
last changed	2007/07/06 12:47

_id	cf2007_317
id	cf2007_317
authors	Mitchell, John; Justin Wong and Jim Plume
year	2007
title	Design Collaboration Using IFC
source	Computer Aided Architectural Design Futures / 978-1-4020-6527-9 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Futures / 978-1-4020-6527-9] Sydney (Australia) 11–13 July 2007, pp. 317-329
summary	This paper reports a study that has been undertaken as part of an on-going project to examine the capacity of building information modelling (BIM) techniques to support collaborative design in the building industry. In particular, our premise is that effective design collaboration relies on the ability to exchange BIM data in a robust way using an open information standard such as IFC. The focus of this present work has been on the processes involved in design collaboration between architects and engineers responsible for advising on thermal performance issues. We begin by looking at the kinds of data that needs to be exchanged to support such collaboration. We then test the exchange using a pilot project model and finally review the capacity of the IFC standard to support such processes.
series	CAAD Futures
email
last changed	2007/07/06 12:47

_id	e5a8
id	e5a8
authors	Saghafi, Mahmoud Reza; Jill Franz, Philip Crowther
year	2010
title	Crossing the Cultural Divide: A Contemporary Holistic Framework for Conceptualising Design Studio Education
source	CONNECTED 2010 – 2ND INTERNATIONAL CONFERENCE ON DESIGN EDUCATION 28 JUNE - 1 JULY 2010, UNIVERSITY OF NEW SOUTH WALES, SYDNEY, AUSTRALIA
summary	While the studio is widely accepted as the learning environment where architecture students most effectively learn how to design (Mahgoub, 2007:195), there are surprisingly few studies that attempt to identify in a qualitative way the interrelated factors that contribute to and support design studio learning (Bose, 2007:131). Such a situation seems problematic given the changes and challenges facing education including design education. Overall, there is growing support for re-examining (perhaps redefining) the design studio particularly in response to the impact of new technologies but as this paper argues this should not occur independently of the other elements and qualities comprising the design studio. In this respect, this paper describes a framework developed for a doctoral project concerned with capturing and more holistically understanding the complexity and potential of the design studio to operate within an increasingly and largely unpredictable global context. Integral to this is a comparative analysis of selected cases underpinned by grounded theory methodology of the traditional design studio and the virtual design studio informed by emerging pedagogical theory and the experiences of those most intimately involved – students and lecturers. In addition to providing a conceptual model for future research, the framework is of value to educators currently interested in developing as well as evaluating learning environments for design.
keywords	design studio, learning environment, online education
series	other
type	normal paper
email
more	http://eprints.qut.edu.au/32147/1/c32147.pdf
last changed	2010/11/16 08:26

_id	ecaade2007_222
id	ecaade2007_222
authors	Turkienicz, Benamy; Bellaver, Bábara; Grazziotin, Pablo
year	2007
title	CityZoom
doi	https://doi.org/10.52842/conf.ecaade.2007.375
source	Predicting the Future [25th eCAADe Conference Proceedings / ISBN 978-0-9541183-6-5] Frankfurt am Main (Germany) 26-29 September 2007, pp. 375-382
summary	In the last twenty years, computer tools have progressively enabled the modeling of buildings and cities in lesser time and cost, along with an increase in the results quality. A city modeled according to planning regulations usually present a correlation between plots and buildings dimensions. The representation of such correlation for a large number of plots requires repetitive work, thus suggesting the use of a computational tool to perform the task. Existing CAD, GIS, and VR software can generate accurate representations of the reality, but have no capabilities to simulate the impact of alternative urban regulations for large number of plots in a short period of time. CityZoom is a Decision Support System for urban planning, with a specific built-in city model, where data is represented in an object-oriented model representing the urban structure. CityZoom not only provide CAD tools, but a shell where different performance models can operate iteratively. It can simulate given urban regulations applied to a set of urban plots, as well as address environmental comfort issues such as shadow casting between buildings. Results can be displayed as tables, graphs, and in a 3D preview of the whole city or part of it. It’s also possible to export them to commercial GIS tools, to perform different data analysis. The graphical outputs make for an easy understanding of the results by laymen, an important feature for participatory planning, while the display of the correspondent numerical data enable correlations with indicators and parameters of urban quality.
keywords	CityZoom, urban planning, building simulation
series	eCAADe
email
last changed	2022/06/07 07:58

_id	cf2007_115
id	cf2007_115
authors	Whiting, Emily; Jonathan Battat and Seth Teller
year	2007
title	Topology of Urban Environments: Graph construction from multi-building floor plan data
source	Computer Aided Architectural Design Futures / 978-1-4020-6527-9 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Futures / 978-1-4020-6527-9] Sydney (Australia) 11–13 July 2007, pp. 115-128
summary	This paper introduces a practical approach to constructing a hybrid 3D metrical–topological model of a university campus or other extended urban region from labeled 2D floor plan geometry. An exhaustive classification of adjacency types is provided for a typical infrastructure, including roads, walkways, green-space, and detailed indoor spaces. We extend traditional lineal techniques to 2D open spaces, incorporating changes in elevation. We demonstrate our technique on a dataset of approximately 160 buildings, 800 floors, and 44,000 spaces spanning indoor and outdoor areas. Finally, we describe MITquest, a web application that generates efficient walking routes.
series	CAAD Futures
email
last changed	2007/07/06 12:47

_id	bsct_ahmeti
id	bsct_ahmeti
authors	Ahmeti, Flamur
year	2007
title	Efficiency of Lightweight Structural Forms: The Case of Treelike Structures - A comparative Structural Analysis
source	Vienna University of Technology; Building Science & Technology
summary	This work addresses the structural efficiency of lightweight tree-like structures for three case studies: Stuttgart Airport, Beaverton Library, and Thermal Bad Oeyenhausen. The case studies are simulated using Build simulation software, to determine the stresses induced in each structure. The material efficiency and shapes areexplored in terms of load bearing structures. Hybrids of the above structures are formed to compare the pattern morphology used by various types of tree-like structure and assess the structural behavior. In addition, (steel, wood and concrete) materials are compared to determine which would have better structural performance. In order to show the resemblance between the growing trees and the tree-like structures, an example of both cases is simulated and stresses evaluated. Results show that, in general, the minimum stress and deformations are obtained for steel. Structures made out of this material also exhibit higher load bearing capability, optimum stability factors and the best geometric efficiency, inspite of higher specific weight (10 times wood, and 3 times concrete).
series	thesis:MSc
email
more	http://cec.tuwien.ac.at
last changed	2007/07/16 17:51

_id	ascaad2007_017
id	ascaad2007_017
authors	Alamgir, S.; A. Khan and K. Alamgir
year	2007
title	Computer Aided Environmental Solutions: Evaluation of Optimum Building Orientation in Lahore, Pakistan
source	Em‘body’ing Virtual Architecture: The Third International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2007), 28-30 November 2007, Alexandria, Egypt, pp. 213-214
summary	One of the primary features of solar passive design is the orientation of a building on a particular latitude. The client of Information Technology demands testing, validity, practicality and sustainability of a building project before execution. The computer based simulations are the only practical way to predict the complex energy performance and analysis for a large number of passive design solutions. This paper investigates the optimum residential building orientation having various zones, located in Lahore, Pakistan, with the help of Energy Simulation program. It is concluded that with the help of software, it is possible to orient the residential plan with the minimum solar gain of the required living zones.
series	ASCAAD
email
last changed	2008/01/21 22:00

_id	caadria2007_283
id	caadria2007_283
authors	Ambrose, Michael A.
year	2007
title	BIM and Integrated Practice as Provocateurs of Design Education
doi	https://doi.org/10.52842/conf.caadria.2007.x.l3j
source	CAADRIA 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Research in Asia] Nanjing (China) 19-21 April 2007
summary	Building Information Modeling (BIM) obfuscates the role of composition, scale and abstraction by displacing the primacy of abstract conventions of representation with a methodology based on simulation. BIM subverts, while simultaneously clarifying, the holistic relationships of the parts to the whole in the architectural design of form and space. Architectural design education has great opportunity and risk in how it comes to terms with re-conceptualizing design education pedagogy as the profession struggles to redefine the media and methods of architectural deliverables in the age of BIM. The paper examines the foundation issues proposed by Integrated Practice. The paper questions how BIM and modeled simulation of architectural assemblage might transcend current definitions of convention in design and construction representation. This paper explores how the academy might prepare students of architecture for a digital practice that focuses on the virtual building model and database management. BIM and Integrated Practice viewed as provocateurs of design education provide great potential for critical analysis of how architectural design is taught. The associated pedagogies are transforming the way in which architectural education engages issues of design and representation and creates opportunities to question the roles and rules of traditional conventions. The paper seeks to engage issues of design specificity and ambiguity related to the assets and liabilities of digital modeling as the primary means of design and representation that BIM represents.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	caadria2007_611
id	caadria2007_611
authors	Arpornwicharnop, Kittisak; Pinyo Jinuntuya and Pizzanu Kanongchaiyos
year	2007
title	Simulation Software Development for Urban Landscape Possibility Analysis
doi	https://doi.org/10.52842/conf.caadria.2007.x.u9u
source	CAADRIA 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Research in Asia] Nanjing (China) 19-21 April 2007
summary	This research paper proposes a simulation software development for possibility analysis of urban landscape development project. Normally, analysis of land potentiality and feasibility study for investment are necessary pre-processed for supporting urban planning, developing and architectural designing. However, most available tools are usually tailor made for each process individually, causing difficulties in information interchange between each processes. In this research, we propose a policy making support system for urban planning project development providing several functions such as testing land use and its physical character which are important to urban expansion and architectural design based on impact analysis of urban comprehensive plan. The proposed integrated system consists of a topological analysis module, constraint checking module and geographical information processing module. First, Geographical information stored in 3D graphic file format is converted to object-oriented data model and stored in a database. With several constraint and regulations, the stored information is then checked in the landscape topological analysis module. In evaluation process, the developed software is tested with geographical information of Bangkok area under constraints and regulations of Building Control Act of Thailand. While controlling building properties, the software can model the buildings and generate urban physical character. The result is then checked by several urban landscape planning experts. Experimental result shows that proposed system provides flexibility in information interchanging with constraints and regulations updating without system reconfiguration. The system also provides internet accessing for public participation in the process of making urban comprehensive plan.
series	CAADRIA
type	normal paper
email
last changed	2022/06/07 07:50

_id	caadria2007_301
id	caadria2007_301
authors	Barrow, Larry; Shaima Al Arayedh
year	2007
title	Emerging Technololgy – Dilemma and Opportunities in Housing
doi	https://doi.org/10.52842/conf.caadria.2007.x.d7c
source	CAADRIA 2007 [Proceedings of the 12th International Conference on Computer Aided Architectural Design Research in Asia] Nanjing (China) 19-21 April 2007
summary	Digital Technology has transformed industrial manufacturing and production; and an array of Industrial Design products provide increasing comfort and benefit to millions of global citizens via ergonomic and mass production/customization strategies. Yet, housing needs of a rapidly growing global population are rarely affected by digital technology. Shifts in societal demographics, from rural to urban city centres, and concurrently Global Warming and ecological changes are exacerbating the world housing situation. Millions are homeless, live in inadequate shelter, or as in the US Manufactured Housing (MH) market, live in nondurable poor quality “manufactured” houses that are detrimental to health, at best, or during extreme weather events, suffer catastrophic damages often resulting in death to occupants. Nevertheless, housing concepts and related living units have benefited very little when compared to architecture’s related manufacturing industries counter-parts (i.e. automotive, aerospace, marine industries, etc). While Technology has vividly expanded the shape language of architecture (i.e. Free-Form-Design), some may argue that Free-Form- Design buildings generally have beauty that is only “skin deep” and typically focus on providing signature statements for both the designer and elite clientele. In this paper, we will briefly review the role of the architect in the US Manufactured Housing industry; additionally, we will identify the major problems that plaque the US Manufactured Housing Industry. Further, we will review how architects and Industrial Designers use technology in their respective fields and draw larger designmanufacture principals for issues of global housing. Our findings and analysis suggest that an Industrial Design approach, applied in architecture for mass housing, offers a means of improving the architect’s role and technology in manufactured housing for the masses.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	ecaade2008_055
id	ecaade2008_055
authors	Beirão, José; Duarte, José; Stouffs, Rudi
year	2008
title	Structuring a Generative Model for Urban Design: Linking GIS to Shape Grammars
doi	https://doi.org/10.52842/conf.ecaade.2008.929
source	Architecture in Computro [26th eCAADe Conference Proceedings / ISBN 978-0-9541183-7-2] Antwerpen (Belgium) 17-20 September 2008, pp. 929-938
summary	Urban Design processes need to adopt flexible and adaptive procedures to respond to the evolving demands of the contemporary city. To support such dynamic processes, a specific design methodology and a supporting tool are needed. This design methodology considers the development of a design system rather than a single design solution. It is based on patterns and shape grammars. The idea is to link the descriptions of each pattern to specific shape rules inducing the generation of formal solutions that satisfy the pattern. The methodology explores, from the urban designer point of view, the capacity of a shape grammar to codify and generate urban form (Duarte et al, 2007). This paper defines the ontology of urban entities to build on a GIS platform the topology describing the various components of the city structure. By choosing different sets of patterns the designer defines his vision for a specific context. The patterns are explicated into shape rules that encode the designer’s interpretation of the pattern, and operate on this ontology of urban entities generating solutions that satisfy the pattern’s concept. Some examples of the topological relations are shown.
keywords	Patterns, shape grammars, ontology, generative urban design
series	eCAADe
email
last changed	2022/06/07 07:54

_id	cf2011_p157
id	cf2011_p157
authors	Boton, Conrad; Kubicki Sylvain, Halin Gilles
year	2011
title	Understanding Pre-Construction Simulation Activities to Adapt Visualization in 4D CAD Collaborative Tools
source	Computer Aided Architectural Design Futures 2011 [Proceedings of the 14th International Conference on Computer Aided Architectural Design Futures / ISBN 9782874561429] Liege (Belgium) 4-8 July 2011, pp. 477-492.
summary	Increasing productivity and efficiency is an important issue in the AEC field. This area is mainly characterized by fragmentation, heterogeneous teams with low lifetimes and many uncertainties. 4D CAD is one of the greatest innovations in recent years. It consists in linking a 3D model of the building with the works planning in order to simulate the construction evolution over time. 4D CAD can fill several needs from design to project management through constructivity analysis and tasks planning (Tommelein 2003). The literature shows that several applications have been proposed to improve the 4D CAD use (Chau et al. 2004; Lu et al. 2007; Seok & al. 2009). In addition, studies have shown the real impact of 4D CAD use in construction projects (Staub-French & Khanzode 2007; Dawood & Sika 2007). More recently, Mahalingam et al. (2010) showed that the collaborative use of 4D CAD is particularly useful during the pre-construction phase for comparing the constructability of working methods, for visually identifying conflicts and clashes (overlaps), and as visual tool for practitioners to discuss and to plan project progress. So the advantage of the 4D CAD collaborative use is demonstrated. Moreover, several studies have been conducted both in the scientific community and in the industrial world to improve it (Zhou et al. 2009; Kang et al. 2007). But an important need that remains in collaborative 4D CAD use in construction projects is about the adaptation of visualization to the users business needs. Indeed, construction projects have very specific characteristics (fragmentation, variable team, different roles from one project to another). Moreover, in the AEC field several visualization techniques can represent the same concept and actors choose one or another of these techniques according to their specific needs related to the task they have to perform. For example, the tasks planning may be represented by a Gantt chart or by a PERT network and the building elements can be depicted with a 3D model or a 2D plan. The classical view (3D + Gantt) proposed to all practitioners in the available 4D tools seems therefore not suiting the needs of all. So, our research is based on the hypothesis that adapting the visualization to individual business needs could significantly improve the collaboration. This work relies on previous ones and aim to develop a method 1) to choose the best suited views for performed tasks and 2) to compose adapted multiple views for each actor, that we call ‚Äúbusiness views‚Äù. We propose a 4 steps-method to compose business views. The first step identifies the users‚Äô business needs, defining the individual practices performed by each actor, identifying his business tasks and his information needs. The second step identifies the visualization needs related to the identified business needs. For this purpose, the user‚Äôs interactions and visualization tasks are described. This enables choosing the most appropriate visualization techniques for each need (step 3). At this step, it is important to describe the visualization techniques and to be able to compare them. Therefore, we proposed a business view metamodel. The final step (step 4) selects the adapted views, defines the coordination mechanisms and the interaction principles in order to compose coordinated visualizations. A final step consists in a validation work to ensure that the composed views really match to the described business needs. This paper presents the latest version of the method and especially presents our latest works about its first and second steps. These include making more generic the business tasks description in order to be applicable within most of construction projects and enabling to make correspondence with visualization tasks.
keywords	Pre-construction, Simulation, 4D CAD, Collaboration, Computer Supported Cooperative Work, Human-Computer Interface, Information visualization, Business view, Model driven engineering
series	CAAD Futures
email
last changed	2012/02/11 19:21

_id	sigradi2007_af73
id	sigradi2007_af73
authors	Bruscato, Underlea; Rodrigo Garcia Alvarado
year	2007
title	Spaces for Meetings and Memories in Virtual Networks [Espaços de Encontro e Memória nas Redes]
source	SIGraDi 2007 - [Proceedings of the 11th Iberoamerican Congress of Digital Graphics] México D.F. - México 23-25 October 2007, pp. 380-384
summary	Digital media is becoming a huge space for information and communication, including heritage simulation. Meantime urban spaces are deteriorating and loosing social role. This paper shows development of heritage models like social spaces in internet to promote urban memory and meetings. A model of old square and theatre of the abandonee town of Sewell in Chile, diffused through youtube, and the model of Square of Inmigration in Sao Leopoldo, Brasil, available in virtual communities in internet with links to fotolog pages of families. These examples demonstrated relationship between technological possibilities and urban spaces that can support social cohesion.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ecaade2007_094
id	ecaade2007_094
authors	Buattour, Mohamed; Halin, Gilles; Bignon, Jean Claude
year	2007
title	Management system for a Virtual Cooperative Project
doi	https://doi.org/10.52842/conf.ecaade.2007.125
source	Predicting the Future [25th eCAADe Conference Proceedings / ISBN 978-0-9541183-6-5] Frankfurt am Main (Germany) 26-29 September 2007, pp. 125-131
summary	The paper presents on-going research aimed at the support of the management of building projects and the aid cooperative design. Today, The use of systems adapted to the cooperative design assistance for the building domain is complex. This results from the complexity of the cooperative work (difficulties in tracking actor’s work, lack of most of the required information, coordination problems, implicit nature of most of the construction activities etc.) The paper will briefly review two data exchanging modes that we had defined. After, on the basis of this concept of cooperative design we describe a new model of a virtual environment aimed to takes into account the relational organization of the project and the semantic meaning of works. This research represents a new approach because it not based on management of documents but on all data relative to works. Finally, we use this new model for defining a design-aided tool, to deduce advantages and limits of the “Virtual Cooperative Project”. This system lets geographically dispersed project actors model the project context of a building. More specifically, it allows interpreting, using and exchanging project works in a centralized virtual environment during the building life cycle. This system uses IFC objects which associate in the same model the semantic and the 3D representation of building works.
keywords	Cooperation model, cooperative work design, project management, digital mock-up
series	eCAADe
email
last changed	2022/06/07 07:54

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